
Parts of the Voyager-DE and Voyager-DE PRO Systems
Voyager
™
Biospectrometry
™
Workstation User’s Guide 1-23
1
• Linear detector—A device that detects ions that travel
down the flight tube. The linear detector measures ion
abundance over time and sends a signal to the digitizer
for conversion.
On the Voyager-DE PRO system, the linear detector is
used in Linear mode only. It is not used in Reflector or
PSD mode.
Linear detectors are hybrid high-current detectors
consisting of a single microchannel plate, a fast
scintillator, and a photomultiplier. These detectors have
superior tolerance for high ion currents.
NOTE: High Current detectors are standard on
Voyager-DE systems with serial number 1128 and
later, and Voyager-DE PRO systems with serial
number 6007 and later.
Additional
parts of the
Voyager-DE PRO
Parts unique to the Voyager-DE PRO mass spectrometer:
• Collision Cell—Provided with CID (Collision-Induced
Dissociation) option for enhanced fragmentation in PSD
analysis.
•Reflector—A single-stage gridded mirror that focuses
energy. In reflector mode, a uniform electric field is
applied to the mirror to reflect ions. Ion reflection:
• Filters out neutral molecules
• Corrects time dispersion due to initial kinetic
energy distribution
• Provides greater mass accuracy and resolution
Komentáře k této Příručce